smtp.linuxcore.com - dns.ninja
smtp.linuxcore.com
| CNAME | linuxcore.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.79.128.99🇬🇧 AKAMAI-LINODE-AP178.79.128.0/18 Akamai Technologies | ||||||
| NS | ns21.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2141::b🇺🇸 GODADDY-DNS2603:5:2140::/44 | ||||||
| PTR | ns21.domaincontrol.com | ||||||
| A | 97.74.100.11🇺🇸 GODADDY-DNS97.74.100.0/23 | ||||||
| PTR | ns21.domaincontrol.com | ||||||
| NS | ns22.domaincontrol.com | ||||||
| A | 2603:5:2241::b🇺🇸 GODADDY-DNS2603:5:2240::/44 | ||||||
| PTR | ns22.domaincontrol.com | ||||||
| A | 173.201.68.11🇺🇸 GODADDY-DNS173.201.68.0/23 | ||||||
| PTR | ns22.domaincontrol.com | ||||||
| MX | smtp.linuxcore.com ⭐ | ||||||
| SOA | ns21.domaincontrol.comdns@jomax.net 2020-02-26 #0 | ||||||
linuxcore.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.79.128.99🇬🇧 AKAMAI-LINODE-AP178.79.128.0/18 Akamai Technologies | ||||||
| NS | ns21.domaincontrol.com ⭐ | ||||||
| NS | ns22.domaincontrol.com | ||||||
| MX | smtp.linuxcore.com ⭐ | ||||||
| SOA | ns21.domaincontrol.comdns@jomax.net 2020-02-26 #0 | ||||||
MX for
Previously MX for
smtp.linuxcore.com |
Same first word
Similar names
DNS History
5 records (1 active, 4 former)
○NSns21.domaincontrol.com2015-11-19 → 2016-10-19 · 4 obs
● 2016-10-19 10:05:58
○ 2026-03-30 06:27:18
○ 2026-07-23 15:18:18
○NSns22.domaincontrol.com2015-11-19 → 2016-10-19 · 4 obs
● 2016-10-19 10:05:58
○ 2026-03-30 06:27:18
○ 2026-07-23 15:18:18
○MXsmtp.linuxcore.com2015-11-19 → 2016-10-19 · 4 obs
● 2016-10-19 10:05:58
○ 2026-03-30 06:27:18
○ 2026-07-23 15:18:18
○A84.41.210.2232015-07-21 → 2016-10-19 · 4 obs
● 2016-10-19 10:05:58
○ 2026-03-30 06:27:18
○ 2026-07-23 15:18:18
●CNAMElinuxcore.com2015-07-21 → 2026-07-23 · 2 obs
● 2026-07-23 15:18:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| linuxcore.com | ns21.domaincontrol.com, ns22.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.100.11
NS records: ns21.domaincontrol.com, ns22.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linuxcore.com (unsigned zone)
⏱️ Timing
Total: 90ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | linuxcore.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns21.domaincontrol.com, ns21.domaincontrol.com, ns22.domaincontrol.com...)
Analysis
Mail Server Role
smtp.linuxcore.com serves as a mail server for linuxcore.com.
IP Addresses
smtp.linuxcore.com points to a single IP number: 178.79.128.99.
Host names such as 178-79-128-99.ip.linodeusercontent.com and linuxcore.com share IP numbers with smtp.linuxcore.com.
Name Servers
smtp.linuxcore.com is served by two delegated name servers, ns21.domaincontrol.com and ns22.domaincontrol.com.
smtp.linuxcore.com shares its name server setup with other domains, including tawqee3.com, guardins.net, cedareducation.com and two others.
Each of the two host names carries two IP addresses: ns21.domaincontrol.com points to 97.74.100.11 and 2603:5:2141::b, and ns22.domaincontrol.com points to 173.201.68.11 and 2603:5:2241::b.
Mail Servers
smtp.linuxcore.com has a single mail server: smtp.linuxcore.com itself.
smtp.linuxcore.com shares its mail server setup with other domains, such as linuxcore.com.